Dumping device.



A. E. HOERMANN.

DUMPING DEVIGE.

APPLIGATION FILED NOV.5,1907.

Patented Mar. 16, 1909.

NORRIS PETERS |NC,, LITHIOH WASHINGTON. D. C,

UNITED STATES PATENT OFFICE,

ALFRED E; HOERMANN, OF NEW YORK, N. Y.

DUMPING DEVICE.

To all whom it may concern: 1 Be 1t known that I,'-AL FRED E. HOERMANN, a cit zen of the United States, residingin the c1ty, county, and State of New York, have invented certain new and useful Improve ments in Dumping Devices, of which the following is a specification.

'Tlnsinvention relates to certain improvements n dumping devices, and more I ularly in such devices as are especia ly de-' signed and adapted for employment upon railway dumping cars and the like, and the object of the invention is to provide a dumpmg device of this general character and of a simple and comparatively inexpensive nature which shall be capable of operation ina substantiallyautomatic manner whereby a mafsrial economyin time is eflected and the employment of manual operating means is obviated; Y

The invention consists in certain novel featiires of the construction, and combinations and arrangements of the several parts ofthe improved dumping device, whereby certain important advantages are attained and the device is rendered simpler, cheaper and otherwise better adapted and more convenient for use, all as will be more fully hereinafter described.

The novel features of the-invention will be carefully defined the claims.

Inthe accompanying drawing which serves to illustrate my invention-Figure 1 is an end view showing a railway dumping car 'provided. with my improvements; Fig.- 2 is an enlarged sectional view showing certain featrares ofconstruction of the actuating means c. the dumping device; Fig. 3 is a view similar to Fig.2, but showing the parts of the actuating means moved to a different position, and Fig. 4 is a sectional detail view taken in the in 1.

. .In these views 1 represents the body of a railway dumping car, which may be of any desired type, being herein shown as provided with dumping gates 2, 2 extended along 1ts y mounted at their upper ends upon shafts 3 extended along the sides of the car body at the upper part thereof and being thence extended, when in closed adjustment, in directions inclined toward each other at the central partof the lower portion of the IS car body so that when the car is loaded the might of the contents will beimposed upon Specification of Letters Patent;

particplane indicated by the line aa opposite lateral sides, said gates being pivota Patented March 16, 1909.

Application filed November 5, 1907. Serial No. 400,754.

being merely duplicated to permit the contents of the car to be dumped toward either side of the track, as may be desired, I have herein illustrated in detail only one of the said dumping devices.

4 represents a chain or other flexible connection, the lower end of whlch has connection at 5 with the lower part of the dumping gate 2,, said chain being thence carried upward and laterally toward the side of the car over sheaves 6, 6 or the like, and having its opposite end extended downward at the side of the car' and connected to wind upon a drum 7, held upon the shaft 3' whereon the upperedge portion of the gate is ivotally hung. The shaft 3 is capable o turning movement independently of the movement of the gates 2, and the chain 4, sheaves 6, 6 and drum 7 will be by preference duplicated in order to equalize the movement of the parts.

At the outside of the end of the car body, the shaft 3 has a ratchet wheel 8 fixed upon it, and 9 represents a holding pawl or detent pivoted on the car body in position for engagement with the teeth of the ratchet wheel 8 whereby it will be seen that said 1pawl or dog acts to prevent hack rotation of t 1e shaft 3 when the chain 4 is wound upon the drum 7 whereby the gate 2 is effectively held in closed position as shown in dotted'lines in Fig. 1 when the dog or pawl 9 is engaged with the teeth of the ratchet wheel. Vhen the dog or pawl is raised to disengage it from the teeth of the ratchet wheel 8, however, the shaft 3 is permitted to turn freely so that the gate 2 is allowed to drop to opened position under the weight of the oad imposed thereon.

In connection with the parts above described, I provide means adapted for operation in a substantially automatic manner for rotating the shaft 3 in such a way as to wind the chain 4- upon the drum 7 to aga n raise the gate 2 to its closed position shown'in dotted lines in Fig. 1, and this means I will now describe.

body, and 12 represents a pawl carried upon The outer end of the arm 11 has pivotal connection at 1 4 with the upper end of a PiS-r ton'rod 15, the lower end of which carries .a piston 16 arranged for reciprocatory movement in a cylinder 17, the lower end of whichhas pivotal connection, as shown at 19, with a bracket held uponthe end of the car body, the arrangement being such that whenlthe reciprocatory movement is imparted to the piston 16 to rock the arm 11 upon shaft 3, and thereby impart intermittent rotative movement to said shaft to wind up the chain 4 upon the drum 7, the cylinder is permitted to rock upon its pivotal connection at 19 to compensate'for the swinging movement of the arm 11 upon said shaft 3.

20 represents a spilling coiled upon the-piston rod, 15 within t e upper part of the cylinder '17, its lower end being engaged on the piston 16 in such a way that the tension of said spring is normally exerted to press said piston down toward the bottom of the cylinder to the position-shown in Fig. 3, whereby the arm 11 is permitted to be lowered 13,0 the position shown in Fig. 1.

22 represents the chamber formed in cylinder 17 below piston 16,- there being-aport 24 extended in-the valve casin 18 from the bottom the chamber 22, an said port 24 is adapted for communication with laterally extended ducts or ports 23 and 32 produced in the valve casing 18, fluid under pressure being adapted to be su plied to port or duct 23 by way of a flexible lihse 25 from a pi e 26 which may be the train pipe of an air rake system or may be a separate pi e extended along the length of the train an adapted to contain fluid (preferably 'air) under pressure.

A. valve or cook is arranged to control the supply of the fluid under pressure to the flexible hose 25 and thence to the ports 23 and 24 and chamber 22' of cylinder 17, and after the gate 2 has been opened to dump the contents of the car, and the pawls 9 and 12 have been returned to engagementwith the ratchet wheels 8 and 10, the said cook or valve 27 is opened to permit fluid under pressure to be admitted into the chamber 22 wherein it operates to lift the piston to the position shown in Fig. 2, whereby the arm 11 is rocked upon shaft 3 and a part al turn is imparted by the ratchet mechanism to said shaft to wind 11 the chain 4 and move gate 2 toward its 0 osed position. A s the piston 16 reaches its uppermost POSlillOIl 111 cylinder -17,- as Seenin -FigPZ, a bit 29 is opened in one wallot the cylin er, which port is xtended down along the side of the cylinder and has comm nication with a c amber 30 at the base-o the valve casing 7'6 in chamber 22 is permitted to flow down through said port so as to exert its tension in chamber 30 in such a way as to lift-the piston 31 in said chamber, and toelevate the valve stem 34 connected with said iston to the position shown in Fig. 2 where y the upperend of said valve stem is caused to project upward into the lower part of the 8 5 chamber 22in position to be engaged by the? piston 16 when thesame is moved down ward by gravity and the tension of spring 20. 33 is a vent, for the discharge of air at the upper part of the chamber 30 u on the ascent of piston 31. In this upwar movement of the valve stem 34, avalve 28 carried thereby is moved into position to close communication from port or duct '23" to duct 24 whereby the supply of fluid from the pipe 26 to chamber 22 is interrupted. The valve 28 is also adapted to control communication between ort or duct 32 and port 24, and

when its owered position serves to occlude said port or duct 32 soas to prevent theescape of fluid therethrough, but when the said valve 28 is moved upwardly to the position shown in Fig. 2, to close communication between ports 23 and 24 and thereby inter rupt the supply of fluid under pressure to chamber 22, communication is established between ports 23 and 32 whereby the fluid under pressure in said chamber 22 is per mitted to exhaust through port 32, so that upon suitable lowering of pressure in said chamber 22 the s ring 20 is permitted to press piston 16 ownwardly toward the tower end of the cylinder. and arm 11 is again permitted to swing downward to the position'shown in Fig. 1, the pawl 12 riding upon the teeth of the ratchet wheel 10.: Asthe iston 16 descends in cylinder 17 it comes communication wit the interior of the cyl- 130 permitted to escape into the upper part of Y the cylinder, wherefrom it is discharged at a vent 21. to the downward movement of the piston 31 when the piston 16 contacts with the valve stem 34. By this arrangement it will be seen that so soon as the contents of the car is dumped, and the cook or valve 27, is opened to supply fluid under pressure from pipe 26, the piston 16 is set intorapid reciprocatory movementso as to cause intermittent rotatory movement ''to be imparted to shaft 3 m such a way as to wind up chain 4 upon drum- 7 and thereby return; (the gate 2 to its closed position. By this construction it will be seen that manualactuation of the dumping'device for returningthe gate. to

closed position is alto ether dispensed with,"

whereby a considerab e saving of time and labor is. effected which is particularly ad vantageous "Where my improvements are applied to railway cars, the only manual operation required being that necessary to raise pawls 9 and 12 and to turn on and ofl the supply of air at the cook 27 Where the pipe 26 is separate from the air brake or other ordinary train service'pipe, the cock 27 may be left open at all times and control of the fluid pressure supply may be eflected at the engine for the entire train.

From the above description it will be seen that the improved dumping device constructed according to'r'ny invention is of an extremely simple and comparatively inexpensive nature and is particularly well adapted for use by reason of the convenience and facility attendant upon its operation, and it will also be obvious from the description that the device is susceptible of some modification Wfizhdut material departure from the principles and spirit of the invention, and for this reason I do not desire to be understood as limiting myself to the precise form and arrangement of the several parts herein -,set forth in carrying out my invention in practice.

Having thus described my invention, what I claim and desire to secure by Letters Patent is 1. A dumping'device for railway cars and i the like having mechanism adapted for connected to actuate said dumpingdevice,

said mechanism having self-controlled valve operating means.

3. A dumping device forrailway cars and the like having reciprocatory mechamsm In this way no resistance is offered adapted for operation by fluid pressure and connected to actuate said dumping'device, and self-controlled means arranged .for alternate operation to first supply fluid under pressure to said actuating mecha'hismjand then to exhaust such fluid under pressure therefrom. I

4. A dumping device for railway cars and the like having mechanism adapted 01 "operation by fluid pressure and connected to actuate said dumping device and means, controlled in unison with the movement Qf' thedumping device, for supplying fluid under pressure to said actuating mechanism. 5. A dumping device for railway cars and the like having mechanism adapted for operation by fluid pressure-and connected to actuate said dumping device and means, controlled from the operation of said actuatingmechanism, for supplyingfluid under pressure thereto;

61A dumping device for railway cars and the like having reciprocatory mechanism adapted for operation by fluid pressure and connected to actuate said dumping device and means,'cont'rolled in unison with the movement of the dumping'device, and arranged for alternate operation to first supply fluid underressure to said actuating mechanism and t en toexhaust such fluid under pressure therefrom.

7. A dumping device for railway cars and the like having reciprocatory mechanism adapted for operation by fluid pressure and connected to actuate said dumping device and means, controlled from the operation of said mechanism and arranged for alternate operation to first supply fluid under pressure to said actuating mechanism and then to exhaust such fluid under pressure therefrom.-

8. A dumping device com rising a part mounted for. movement in an out of dumping .po'sition,a shaft mounted to turn and having connection with said part to move the same, reci rocatory mechanism adapted for actuation liy fluid pressure, and ratchetmechanism actuated'from the reciprocatory -mechanism and connected to im art intermittent turning movement to said shaft.

9. A dumping device for railway cars and the like comprising a gate movableinto opened or closed position, ratchet mechanism connected with saidgate to move the same, and reciprocatory mechanism adapted for operation by fluid pressure and-connected to actuate said ratchet mechanism; 7

.10. A device of the character described comprising apivotally mountedcylinder, a

piston in the cylinder, means to impart reciprocatory movement to the piston, a dumping gate, and ratchet mechan sm for operating said dumpin gate and compr sing a pivotally mounte arm connected with and actuated from said iston. I

11. A device oft e character described comprising a pivotally mounted cylinder, a piston n thecylinder, means to impart reciprooetorig .movement to the piston, a

' art mounted to rotate, adumping gate 5 -Eating connections arranged to windon said rota-tive part, an arm mounted for pivotal movement relatively to said rotative part, a, connection for moving said arm from the piston in said cylinder, and means for imparting intermittent movement to said rota.- 10 tive part from the movement of said arm.

In witness whereof I have hereunto signed myname this2nd day of November 1907, in the presence of two subsoribin witnesses.

, ALFRED E. HOERMANX. Witnesses:

JEROME EISNER, GEORGE MALRISON. 

